Deep well pump



' June-9, 1931. J. c VROMAN 1,809,321

DEEP WELL PUMP Filed Oct. 9, 1929 INVENTOR.

ATTORNEY. J

' v poun Patented June 9,1931

UNITED STATES PATENT OFFICE JOHN 0. mm, 013' OKLAHOMA, ASSIGNOR OI ONE-HALF '10 C. 1?. SMITH, OI

, I TULSA, OKLAHOMA.

nnnr was ruur Application filed October 9, 1829. Serial No. 898,470.

This invention relates particularly to packing used on a traveling valve in an oil well or other deep well ump.

The practice has een to use a series of 5 leather or composition cups on the traveling valve to prevent the 'esca e of oil between the valve and the wall of t e working barrel. As an oil well two thousand feet in depth. has a pressure of approximately one thousand ds at its bottom, it is obvious that these cups must be extremely tight and fit the working barrel perfectly in order to flmction properly. If t e cups are extremely tight, they operate under considerable friction whichis '15 objectionable. Moreover, due to wear, especially if the .well is pumping part water, the cups decrease in diameter until oil leaks by them and then new cups must be substitute Another obj ection to the usual cups is that they are made to fit a certain size working barrel and after the working barrel becomes worn even new cups might not fit it. This sometimes happens after a set of used cups has been-withdrawn from the well. and a set delay and labor.

My invention overcomes these objections.

I use lead as my packing and arrange it so that it expandsagainst the wall of the working barrel. Thus the working barrel may be slightly untrue or wornconsiderably an et my packing will function perfectly. I a 0 provide a follower to act u n the packing and keep it 3fpushed .out'against the working barrel, the orce being exerted on the lead during the down stroke, when the pressure on the packing is a. minimum.

i As the lead wears and decreases in length the follower remains closely adjacent thereto.

4 The increased capacity of the hydraulic cham-.

her is filled with oil and the follower remains abutting the lead regardless of the size'of the chamber or regardless of the length of the lead cup.

In some wells, cut out the on my improved va ve is installed all difliculty along this line is overcome as the sand does not mar the surface of the lead or, if it does,

the sand is-sharp enough to f 'such cuts and the like are healed by the slight of new ones installed therein with the usual cylinder s every day, whereas when,

but incessant action of the follower on the top partly in elevation and partly in vertical section,

Figs. 2, the lines 2-2, 3-3 and 44,.respectively, of Fig. 1,

Fig. position of the several members adjacent the fluid chamber just after the valve has started on its down stroke, and

Fig. 6 is a similar view showing the fol: lower in a lower position due to the shortening of the lead cup caused by wear and expansion.

' The tube or body 1 has a shell 2 threaded onto its lower end and locked'by means of the set screw 3, the shell being formed ex- 1 ternally with fiat areas 4 to be engaged by a wrench or similar tool. Threaded onto the lower end of the shell 2 is the valve cage or 5 in the lower end ofwhich is the usual valve seat 6 to be engaged by the ball valve 7. Across cylinder 5' is an integral web 8 with four holes 9 bored therein. This web forms .an abutment for the ball on the down stroke when the ball rises. y I

A fabric or composition washer 10 rests on the top of the shell 2 around the tube 1 and ,fllllllShBS a soft seat for the'steel ring formed in its inner face, while upper and- 3' and 4-are horizontal sections on v 5 is an enlarged view showing the.

the upper portionv of the lower grooves 15 are formed in the outer sur-' face of the same. In operation, the lead is forced downwardly b the head 16 on the follower 17 and is there y expanded outwardly againstthe working barrel, indicated at 18. After the lead is worn out, it may readily be removed from the working barrel by merely pulling the sucker rods upwardly thus causing the extended lead to shear or tear oil and collect in the groove 12 of the ring 11. This shearing is apt to occur after the valve has seen considerable service and the barrel, above the part in which the traveling valve is reciprocating, becomes corroded or ug n The follower 17 which abutsthe top edge of the lead cup 13, is a cylinder encircling the tube 1 but spaced slightly therefrom, and it also encircles the reduced lower end 19 of the sleeve 20. The end 19 is spaced from the head 16 whereby an enclosed annular chamber or recess 21 is formed, and a spring 22 is compressed in this n cuss. In its upper portion, the sleeve is formed with an internal annular shoulder 23 adapted to abut a mating external shoulder 24 on the tube 1, the. weight being carried to the pump rods through the cage 25 and the sleeve 20. It will be noted that this is a direct connection with no play or lost motion, the pump or sucker rods being connected in the usual manner to the top of the cage 25 which is threaded onto the upper end of the sleeve 20.

The sleeve 20 has a depending flange or follower sleeve 26 which may be threaded thereto, as at 27, and is longer than the inner flange or end member 19 in order that it may abut against the head 16 of the follower 17 and prevent mutilation of the spring 22.

The members 19 and 26 form a tight running fit against the follower 17 and especially so when the valve is submerged in oil. Simi- 'larly, the chamber 21 is more or less fluid tight.

The upper chamber 28 between the members 19 and 26 has a unique valve or cut-oil device leading thereinto. This consists of a hole 29 through the sleeve 20 leading into the chamber 28, a groove 30 out entirely around the interior of the sleeve at the inner end of said hole, and a hole 31 through the tube 1. The holes and the groove are in alinement when the valve is on its upv stroke by reason of the shoulder 23 on the sleeve abutting the shoulder 24 on the tube. The sleeve and the tube'also have holes 32 and 33 formed therethrough into which a pin may be inserted in order to assemble the parts by screwing the tube into the shell 2.

The cage 25 has the usual threaded neck 34 for connection with the lowermost pump rod. This neck is bored out and a sand deflector 35 beaded therein, the deflector being an inverted cone.

When the valve is on the up stroke, the ball 7 is, of course, held to its seat and pressure or pull'thereon is transmitted through the cylinder 5, shell 2 and tube 1 to the shoulder 24 where it is received by the shoulder 23 l force is transmitted through this oil to the head 16 of the follower 17 Oil is entrapped with n the chamber or recess 28 on the down stroke but not until the sleeve 20 has slipped downwardly until the hole 29 therein is out of alinement with the hole 31 in the tube 1. Thus, the chamber becomes fluid tight and force may be transmitted through the fluid therein. When the holes 29, 31 slide past each other, a jar occurs upon the lead as the non-compressible fluid is entrapped in the chamber 28. The amount of this jar depends directly upon the size of the alined holes 29 and 31. The spring 22 tends to keep the follower head 16 adj accnt the top of the lead cup 13, and said head may be beveled, as shown at 36, in order to more readily expand the lead cup.

As soon as the up pull on the sucker rods ceases, they and the valve tend to return downwardly due to their weight. The downward movement is resisted by the fluid which is below the traveling valve passing upwardly therethrough, and the valve is thus subjected to two shocks, one acting upwardly, the other downwardl The upward shock is transmitted to the bottom of the lead cup through the valve cylinder 5, shell 2, washer 10, and steel ring 11.

The downward shock is transmitted to the top of the lead cup, the opposed forces acting on the lead cup to distort it. As the cup cannot go inwardly, it expands outwardly. This expansion occurs when the valve is on its down stroke and under a minimum pressure which is obviously desirable as it allows the lead to readily expand.

The downward shock is transmitted to the top of the lead cup through two separate systems. However, these systems act in parallelism. In both, the forces act upon the sleeve 20 through the cage 25 and thence through the members 19 and 26.

. It is to be understood'that the term oil as used in this specification includes all of the fluids that are to be found and contended with in oil wells, such as water, gas, etc., as well as the hydrocarbons of oil roper.

Havingthus described the invention, ll claim:

1. In a dee well pump, a tube having an external shou der at its upper end and a small hole through the tube a short distance below the shoulder, packing supported on the tube, a follower having its lower end abutting the packing, the follower extending upwardly from the packing in spaced relation to the tube, a sleeve having an internal shoulder which fits underneath the shoulder on the tube, the sleeves extending downwardly within the follower, and a spring between the lower end of the follower and the lower end of the sleeve,said sleeve also having an interior groove and a hole in alinement with the small hole in the tube, and also having a derounds the to adm t liquid from the tube recess in the packing, spring of the packing.

thereon, means rigi lower slidably tliereon, means rigi other end .upwardly facing internal the follower.

v means slidably v 45.

- means cooperating with the pa king at alltimes,

e which slidably fits and surollower whereby an enclose chamber is formed.

2. In a deep well pump I. pending flan a sleeye having anshoulder and a. downwardl facing annular opening, a 0 lower slidably mounted in said opening, packing below the'follower, a tube having an external shoulder abuttin the shoulder on thesleeve, and means'on t e tube to support the packing, said, tube" and sleeve having alined holes therethrough to connect the circular opening with theinterior of the tube thereto above 3. In a deep well: pump, a tube, a sleeve encircling the tube and having arecessin its lower portion, means connected with thesleeve for lifting the same an tube, a follower slidably mounted in the the sleeve and cooper ciated with the tube, and packing supported on the tube and receiving the im act of. th follower, there being-openings t sleeve and the tube to tube to the recess above thefollower.

4. In a lunger having a central tube and packing t ereon, the combination of means rigid with the tube at .one i in to support the packing, ab y mounted on the tube at the other end 0 meansto keep the folthe packing, and means slidably mounted on the against the follower and efiect expansion lower snugly against '5. In .a deep well pump, a tube 'd, with the tube atthe acking to support the packing, a follower s id'ably mounted onthe tube at thef other end of the, packing, spring means to keep the follower tightly 'against'the top of the acking, and impact mounts on the tube toimpin e upon the follower and effect expansion f t e packing. .f 6. In a deep well pump,- a tube, packin thereon, means rigid with the tube at one en of thepacking to support the packing, a

lower end of the mounted on the tu other end of the packing, and hydraulic im act In a deep well d with of the same uponthe packing.

pump, a tube,- packin the tube atone en of the p lower slidabl oft 0' operating with t of the same upon I meansforpushing the follower asking to support the paclnng, wa mounted on the tubes at planking, hydraulic means 00- e 'followe to effect impact 1,soe,sa1

ow the packing the tively assov e rough the y admit fluid from the 1 o I d of the pack- -a follower slidtube to impinge the packing and auxiliary against the direction, means toreciprocate the sleeve, said sleeve having a chamber or recess in, and a follower slida 1y ifitting'into said chamber or-recess and arranged to abutt packing for expanding the same.

A connection or take -up for a traveling valve consisting of a sleeve having a recess (therein, a follower snugly fitting in the recess,vand means for entrapping uid in said recess to, force the follower outwardly in t e recess.

ee well pump, of compressible metal on the tube, and a suport for the packing secured on the tube, be-

and'having an external annular groove in which excess of the compresa tube, a packing I 'theresible metal-may be receive r v In testimony whereofIaflix nfiy signature.

- JOHN QYROMA [1 {5.1

packing variable fol- I be at the follower to effect a tube, pack g I I thereon'a sleev'e'encircl' thetube, means to hold the sleeve" fromreletive movement in \cne. y 

